Glue-spreader.



E. M. WHITNEY 6.1. B. HABERLE.

GLUE SPREADER.

APPLICATION FILED MAY 6. 1914.

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3 SHEETS-SHEET I.

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GLUE SPREADER.

APPLICATION FILED MAY 6,1914.

3 SHEETS-SHEET 2.

'Izlcnfud Ovt. 24, 1916.

@M7/I TTOH/I/EYS E. IVI. WHITNEY & I. B. HABERLE.

' GLuE SPREADER.

APPLICATION FILED IIIAY 6. 1914.y

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N/ESS A STATES ATNN wlllhlll.

EDWIN M. WHITNEY, OF LANSDALE, PENNSYLVANIA, AND JOHN B. HABERLE, OF

SGUTH BEND, INDIANA, ASSIGNORS TO PERKINS GLUE COMPANY, A CORPORA- TION OF PENNSYLVANIA.

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Application led May 6, 1914.

T0 all whom t may concern:

Be it known that we, EDWIN M. WHITNEY and JOHN B. HABERLE, citizens of the United States, the fformer a resident'. of Lansdale, county of Montgomery, State of Pennsylvania, and the latter a resident of South Bend, county of St. Joseph, State of Indiana, have invented certain new and use! ful Improvements in GlueSpreaders, of which the following is alspecication.

The invention relates to improvements in glue spreaders and more particularly yto spreaders adapted to apply a specially vis cous glue such as described in Letters Patent No. 1,020,656 and Reissue Letters Patent No. 13,436.

Such spreaders are particularly adapted to spreading glue on wood veneers and in such work with the form of Scrapers hereto fore used in this class" of spreaders it has been found that sawdust, chips and other foreign matteiis prone to collect between the scrapers and the glue applying rolls, thus preventing not only an even spread, butI in many cases so completely obstructing the flow of the glue as to cause dry streaks, which seriously affect the quality of the work and make it necessary that the machines be frequentlv stopped, in order that the space between the Scrapers and glue applying rolls be periodically cleaned out.l

The main object of this invention is to provide apparatus in which these disadvantages do not occur and in which the space between the scraper and glue applying rolls is automatically cleaned of all such foreign matter.

Further objects of the invention are to provide improved means for adjusting the scraper to and from the glue applying rolls, and to provide a machine withboth upper and lower glue applying rolls, in which the pressure exerted between the rolls upon the material being glued may be more satisfactorily adjusted and in which fingers are provided for stripping the material. from the rolls, which may easily and conveniently be adjusted toward the glue applying rolls.

Further objects, features and advantages will more clearly appear from the detailed description given below, taken in connection with the accompanying drawings which form a part of this speciicatio-n, and in which- Specification of Letters Patent.

Patented ct. 241, 119116..

serial No. 836,800.

Figure 1 isa side elevation of a machine embodying the invention in its preferred form; Fig. 2 is a front elevation of the same. and Fig. 3 is a vertical section taken on the line 3 8 of Fig. 2.

-Referring to the drawings: 1 represents suitable framework having journaled therein at 2 a glue applying roll e. The roll dips in a glue trough 5. Hinged at 6 at the front of the glue trough 5 is an upright front piece 7, having integral therewith a horizontal table 8 on.which the veneers or inaterials to be glued are laid as they are fed into thespreader. Secured to the table S as by screw bolts 9 are end pieces 10 in which is journaled a roller 11 cooperating as a scraper for the glue applying roll 4. Springs 12l are provided, one at each end of the machine, each spring having one end abutting against the frame of the machine and the other end abutting against the under side of an extension 13 of the table 8, which springs tend to oscillate the table up- \ward about its pivot at 6, carrying with it the roller 11 thus tending to move the roller 11 away from the glue roll 4. The roller 11 is drawn toward the roll 4l against the tension of the springs 12 by means of hand nuts 14 threaded on the ends of links 15 having their opposite ends pivoted in the framework at 16. (Fig. 1.) The links 15' at their outer ends engage lateral slots in the extensions 13 against which the nuts L1 bear. Consequently, by screwing up on the hand nuts 14 the table 8 is pulled forward and the roller 11 downward against the ac tion of the springs 12 so that the roller may ,be adjusted toward and from the glue roll L1 to vary the thickness of the layer of glue on the latter, the springs acting to force the roller 11 away from the roll 4: upon a re lease of the nuts 14. j

In order to periodically give the roller scraper 11 a .rotary movement, a ratchet wheel 16 is secured to the shaft thereof at one end, which ratchet is operated by a spring pressedpawl 17 pivoted on an arm 18, which arm 18 is journaled on the shaft o-f the roller 11. The arm 18 is engaged by a cam 19 (Fig. 1) on the shaft of the glue roll 1, which oscillates the arm 18 causing the pawl 17 and ratchet 16 to periodically move the roller 11 with respect to the glue ica roll 4, thatV is, give it a rotary movement, so that all dirt, chipsV or other foreign matter which may Vhave collected in the narrow space betweenL the roller 11 and roll 4 will be carried through between the rolls and not allowed to collect suiciently to cause any unevenness in the'layer of glue left on the roll 4 to be applied to veneers.

r1`he machine is also provided with an upper glue applying roll extending into the engaged by a screw 33 working in the main frame and operated by a hand wheel 34. By

turning the hand wheel 34 so as to advance the screw 33 inwardly, the shaft is rotated, forcing arms 27 downwardly which, by means of the links 26 pull the arms 25 downwardly so as to raise the upper roll 20 and so adjust its position with respect to the lower roll 4. The upper roll 20 is pulled downwardly by means of weights 35 adjustable on the ends of horizontal arms 36 pivoted in the main frame at 37, the arms 3G being engaged by upright rods 38 passing through extensions 39 integral with the arms Y 22 and engaged by thumb nuts 40 on their upper ends, so that by turning the thumb nuts the rods 38 may be pulled up or lowered in order to adjust the position of the weight carrying arms 36.

The upper glue trough 21 is pivoted -at 41 to the integral extension. -of the arm 22 and has journaled in its ends-at the bottom of the trough a roller scraper 42 cooperating with the upper glue roll 20. Links 43 pivoted to the inner ends of the arms 22 are screw-threaded on their outer ends and engaged by hand nuts 44, which engage slotted extensions 45` attached to the front of the Y upper glue trough and throu h which the links 43 pass. Rigid on the lin s 43 are nuts 46 and springs 47 surrounding the links 43 have one end abutting against the nuts 46 and their opposite ends abutting against the extension 45. Upon screwing up upon the nuts 44 the lower part ofthe glue trough 21 is moved inwardly against the action of the springs 47 carrying with it the roller scraper 42 so that the same may be adjusted toward and from the roll 20, the roller 42 being moved away fromthe roll 20 by the springs 47 upon the loosening up of the nuts 44.

1n order to give the roller scraper 42 a periodic rotary movement so as to clear any foreign matter from between it and the roll 20, a ratchet 48 is secured to the shaft of the roller 42 outside the upper glue trough, which ratchet is operated by a pawl 49 pivoted on an arm 50 which arm is pivoted tothe upright extension 0f the arm 22 at 51 (Fig. 1). The rear end of the arm 50 is oscillated up and down by being connected Vwith the oscillating arm 18 by means of a Ytion of the fingers. Likewise pointed fingers 58 engage the circumferential grooves in the upper roll 2O which fingers are supported by the shaft 59 (Fig. 2) to which the arms 22 are secured. The fingers 58 are made adjustable by securing them to the shaft 59 by means of split collars,I each having two parts G0 and (31 secured together about the shaft 59 on one side, by means of a screw-bolt 62 and on the other side by means of a thumb screw G3, so that by loosening the thumb screws 63 the fingers 58 may be adjusted toward the vglue applyingl roll and then the thumb screws 63 tightened to maintain the fingers in adjusted position.

To drive the machine, power is applied to the shaft G4 which carries a pinion meshing with a pinion (35 on the shaft of the lower glue roll 4 so as to drive the latter. At its other end the shaft (i4 carries a sprocket wheel over which passes a sprocket chain 66. The chain 6G passes over an idler 67 and thence over a sprocket wheel 68 loosely mounted on the shaft 59. Another sprocket wheel rigid with the sprocket wheel (i7 drives a sprocket chain 69 which chain drives a sprocket wheel 70 rigid with the shaft of the upper glue roll 20 so that the upper glue roll is driven from the power shaft 64 and movement of the upper and lower glue rolls 20 and 4 toward and away from one anotherdoes not tighten or loosen the sprocket chains.

From the above it will be clear that the invention comprehends a glue spreader having a roller scraper coperating with one or both of the glue applying rolls, whereby dirt, chips, sawdust and other foreign matter will be automatically freed from between the scraper and the glue applying roll. By the term foreign matter is meant any and all matter which tends to clog up the space between the scraper and glue applying roll, so as to cause an interference iov imacat' in the spreader a failure of spread in streaks, and such foreign matter may includey even hardened or jellied portions of the glue itself, which would clog or hinder the flow of the glue through the space between the scraper roll and the glue applying roll. lt will be seen that by giving the scrapers 11 and 42 a rotary movement with respect to the glue applying rolls, that any foreign matter which may collect in the glue troughs and tend to enter between the scraper rolls and glue applying rolls will be carried through between them and not allowed tov clog sufficiently to cause streaksor other disadvantages in the spread.

The means for periodically oscillating the roller scrapers by means of pawls and ratchets forms an efficient positive means for periodically moving the scraper rollers to .accomplish theabove mentioned purpose.

The special adjustments mentioned have also important advantages, as -will be clear to those skilled in the art, upon reading the above description.

Although the means have been described in connection with the one particular machine and in great detail withl respect thereto, yet it will be clearly understood that many changes and modilications may well be made in the apparatus without departing from the spirit of the invention and its scope and in its broader aspects, as set forth in the appended claims.

Having fully and clearly described the improvements, what is claimed and desired to be secured by Letters Patent is l. A glue spreader having a glue roll for `applying the glue to the material to be glued and an intermittently operated roller scraper coperating therewith to regulate the amount of glue applied.

2. A glue spreader having a glue roll for applying glue to the material to be glued and an intermittently movable scraper cooperating therewith whereby foreign matter will be automatically freed from between the scraper and glue applying roll.

3. A glue spreader having a glue roll for applying glue to the material to be glued, a scraper coperating therewith and means intermittently moving the scraper relatively to the roll whereby foreign matter will be vautomatically freed from between the scraper and the glue applying roll.

4. A glue spreader having a glue roll for applying glue to the material to be glued, a scraper coperating therewith and means for automatically moving said scraper intermittently, to permit foreign matter to be automatically freed from between the scraper and the glue applying roll.

5. A glue spreader having a glue roll for applying glue to the materlal to be glued, a scraper coperating therewith and means for periodically giving said scraper a rotween the scraper and the tary movement, whereby foreign matter will be automaticallyfreed from between the scraper and the glue applying roll.

6. A gluespreader having a glue roll for applying glue to the material to be glued, a roller scraper therefor and means for automatically periodically giving said scraper a rotary movement, whereby foreign `matter will be automatically freed from 'beglue applying roll.

7. A glue spreader having a glue roll for applying glue to the material to be glued, a scraper therefor and means for automatically periodically moving said scraper without affecting the spread of the glue, whereby foreign matter will be automatically freed from between the scraper and the glue applyingroll.. f

8. A glue spreader having a glue lrollfor applying glue to the'material tobe'glued and a roller scraper cooperating therewith to regulate the amount of glue applied, means intermittently moving the vscraper relatively to the glue roll and vmeans for adjusting the scraper to-a'nd from thezglue applying roll.

9. A glue sprea'der'having aglueroll for` applying glue to the material to be glued, a scraper cooperating therewith and means for automatically periodicallyr moving said scraper, whereby foreign matter will be automatically freed from between the scraper and the glue applying roll, and mea-ns for adjusting the scraper to and from the glue applying roll.

10. A glue spreader having a glue roll for applying glue to the miaterial to be glued, a. roller scraper therefor and means for automatically periodically giving said scraper a rotary movement, whereby foreign matter will be automatically freed from between the scraper and the glue applying roll, and means for adjusting the scraper to and from the glue applying roll.

11. A glue spreader having upper and lower glue applying rolls, a roller scraper for each glue applying roll, and means forl veach glue applying roll, each scraper be- `applying rolls receiving glue from said troughs respectively, a roller scraper for each glue applying roll, each scraper being automatically intermittently given a rotary movement, whereby foreign matter will be automatically freed from between the scraper and the glue applying roll, and means for adjusting each scraper to and from its glue applying roll. 15. In a spreading machinethe combination of a roll for applying the material to be spread, and a-scraper for said roll automatically given an intermittent rotary movement, whereby foreign matter will be automatically freed from between the scraper and the ro 16. In a spreading machine the kcombination of a roll for applying the material to be spread, a rotating scraper for said roll and means for automatically giving said scraper an intermittent rotary movement, whereby foreign matter will be automatically freed `from between the scraper and the roll.

17. In a spreading machine the combination of a roll for applying the material'to be spread, a roller scraper for said roll and a pawl and ratchet mechanism for automati' cally periodically giving said scraper a rotary movement, whereby foreign matter will be automatically freed from between the scraper and the roll. v

1-8. A glue spreader `having a glue applying roll, a scraper therefor adjustable toward and from the roll, a spring or springs tend! ing toforce the scraper away from the roll,

means for intermittently moving the scraper to free foreign matter from between the roll and scraper, and a means for forcing the scraper toward the roll in opposition to the spring or springs to adjust the position of the scraper with respect to the roll.

19, A glue spreader having a glue applyingvroll, a scraper therefor adjustable toward and from the roll, means intermittently rotating the scraper, a spring or springs tending to force the scraper away from the roll and a hand nut or nuts for forcing the scraper toward the rol'l in opposition to the spring or springs to adjust the position of the scraper with respect to the roll.

20. A glue spreader having upper and lower glue applying rolls, a roller scraper for each glue applying roll, a pawl and ratchet mechanism for periodically giving each scraper a rotary movement, whereby foreign matter will be automatically freed from between the scraper and the glue applying roll, springs tending to force the scrapers away from their respective rolls and hand nuts for forcing the Scrapers toward their respective rolls in opposition to the springs to adjust the position ofthe Scrapers with respect to their respective rolls.

In testimony whereof, we have signed our names to this specification in the presence of two subscribing witnesses.

EDWIN M. WHITNEY. JOI-IN B. HABERLE.

Witnesses to the signature of Edwin M. Whitney:

GRACE H. Lovin, THOMAS J. HENDRICK.

Witnesses toI the signature of John B.

Haberle:

HARRY R. WAIR ELLA C. BAUs'rIAN HANS. 

